Smith made his NHL debut with the Devils during the 1993–94 season, though he spent the majority of the season in the American Hockey League with the team's affiliate, the Albany River Rats. He then missed the majority of the 1994–95 season due to a knee injury, but recovered in time to play in one Stanley Cup playoff game, his playoff debut, before eventually returning to captain the River Rats to a Calder Cup championship in 1995, the same year the Devils captured their first Stanley Cup. Then next season, 1995–96, Smith became a regular fixture on New Jersey's NHL roster. On February 25, 1997, during the 1996–97 season, Smith was involved in a blockbuster trade, moving to the Toronto Maple Leafs, along with Steve Sullivan and the rights to Alyn McCauley, in exchange for Doug Gilmour, Dave Ellett and New Jersey's fourth-round draft pick in 1999 Smith spent parts of three seasons in Toronto before being traded to the Edmonton Oilers on March 3, 1999, during the 1998–99 season. When the Oilers' team captain Doug Weight was later traded to the St. Louis Blues, Smith's strong leadership tendencies resulted in his being handed the captaincy, where he would ultimately match Wayne Gretzky as the longest-serving captain in Oilers history at five seasons, wearing the "C" from 2001 to 2007, excluding the 2004–05 NHL lock-out in which the 2004–05 season was cancelled. Smith captained the Oilers to a largely unexpected run to the 2006 Stanley Cup Finals, in which they faced the Carolina Hurricanes, another dark horse team. However, the Oilers lost in the Final game of a gruelling seven-game series. He contributed one goal and four assists during Edmonton's surprise playoff run. On July 1, 2007, Edmonton General Manager Kevin Lowe traded Smith, along with forward Joffrey Lupul, to the Philadelphia Flyers in exchange for Joni Pitkänen, Geoff Sanderson and Philadelphia's third-round draft pick in 2009. In his first and only season in Philadelphia, Smith captained a rebuilt Flyers squad to an Eastern Conference showdown against their inter-state rivals, the Pittsburgh Penguins. Despite the fact that the Penguins won the series, the Flyers' turnaround from the worst team in the NHL to their status in 2007–08 was a testament to Smith's leadership abilities. In the 2008–09 season, Smith played his last year in the NHL with the Ottawa Senators before retiring from professional hockey on September 2, 2009. He later became an assistant coach for the Senators.
Career statistics
Regular season and playoffs
International
Transactions
February 25, 1997 – Traded by New Jersey, along with Steve Sullivan and the rights to Alyn McCauley, to Toronto in exchange for Dave Ellett, Doug Gilmour and a third-round draft pick;
March 3, 1999 – Traded by Toronto to Edmonton in exchange for a fourth-round pick in the 1999 NHL Entry Draft and a second-round pick in the 2000 NHL Entry Draft;
July 1, 2007 – Traded by Edmonton, along with Joffrey Lupul, to Philadelphia in exchange for Joni Pitkänen, Geoff Sanderson and a third-round pick in the 2009 NHL Entry Draft;
